Valve-lifter



A. E. STAFFORD AND I. w. UNGER.

VALVE LIFTER.

APPLICATION FILED MAY 2, 1919.

1f,355,432, Patented Oct. 12, 1920.

UNITED STATES if PATENT OFFICE.

ABEL E. STAFFORD AND JOHN W. UN GER, OF CORRECTIONVILLE, IOWA.

VALVE-LIFTER.

Specification of Letters Patent, Patented Oct. 12, 1920.

Application filed May 2, 1919. Serial No. 234,290.

To all whom, it may concern Be it known that we, ABEL STAFFORD and JOHN W. UNGER, citizens of the United States of America, residing at Correctionville, in the county of Woodbury and State of Iowa, have invented certain new and useful Improvements in Valve-Lifters, of which the following is a specification.

Our invention relates to an improved valve lifter, particularly constructed for use in lifting the valves of motor vehicle engines to permit the removal of the valves, and the main objects of our invention are the provision of a device which may be adapted or adjusted to engines of different character; which will be small and compact in size to permit ready carrying or storing in the vehicle; which will consist of few parts to insure ease of operation, cheapness of production and efficiency in use; and which in general will possess all the requisites of a device of this character to insure its beingentirely practical.

With the attainment of these and other objects in view our invention consists of a valve lifter embodying novel features of construction and combination of parts for service substantially as shown, described and definitely pointed out in the claim.

In order that the construction in detail and the operation of our device may be understood and its advantages be appreciated, we have shown in the accompanying drawing a structure which embodies our improvements, and in said drawing:

Figure 1 represents a side elevation of our complete device, shown in position for use,

and

Fig. 2 represents a sectional view taken on a horizontal plane above the adjustable bracket, with the central portion of the latter broken away.

It will of course be understood that our device is for use in connection with the valve A, on rod B, and the engine C, of the usual gas operated motor such as used upon motor vehicles, and is for the purpose of lifting the valve and permitting easy removal of the entire valve from its seat.

In carrying our invention into effect we employ a flat shank D, twisted at its end E, to form the fiat horizontal arm F, formed at its free end with a curved gripping jaw G, which co-acts with the similar gripping jaw G having its inner end H, pivoted at J, upon the arm, and said pivot J, being formed with threads K, to receive a winged clamping nut L, whose purpose, is to clamp the jaws upon the lower end of the valve rod, and such construction allows instant application of the jaws to the rod sotha-t lifting of the arm also bodily raises the disk M, against thetension of the valve spring N, to compress the sprin andmove the disk M, away from the pin allowing the pin to be detached and valve removed.

With the mechanism described we provide a co-acting means which consists of the bracket 0, having an opening P, to fit the shank and retained in proper adjustment on said shank by means of the clamping screw Q, while carried by said bracket is the post R, having mounted in its upper end the cam S, provided with a handle S for operating said cam, such cam bearing against the head T, of the stud T which is guided in a passage U, of the post and around the stud is placed a coiled spring V, whose function is to normally tend to hold the stud in raised position.

The manner of using our device will be instantly apparent from a careful inspection of the drawing in connection with the foregoing description, and in the drawing the device is shown with the parts connected to the valve to lift the valve spring and permit the operator to release the valve to effect in the usual manner its removal and it will be understood that in use the bracket is adjusted and the stud brought into engagement with the top of the valve, while the coacting j aws slidably embrace the valve rod. With the parts in this position, pressure upwardly against the handle S serves to force ries the gripping member, while the vertical shank supports the adjustable bracket equipped with the means for engaging the to of the valve, all as clearly shown.

e claim: A device of the character described, comprising an upright, a horizontal extension at the lower portion of the upright, having its free end cut away tor-form a rigid jaw, a

member pivotally mounted on the saidex tension and having-a jaw cooperating with; and adjustalolewith respect to said rigid jaw, a laterally outstanding bracket having an adjustable connection with the said upright and shiftable toward and away from the lower extension, said braoket having a bearlng 1n vertlcal allnelnent wlth the ]LWS said plunger. V v

In testnnony'whereof we affix our slgna- 15 of the said lower extension, spring con- 10 trolled plunger working through the said bearing and means. snppprtedhy the bearing for exerting downward pressure against the tultes.

' ABEL E. STAFFORD.

' JOHN W. UNGER. 

